Xircom (OP)
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February 09, 2015, 05:57:35 PM |
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Didn't measure the db but they are loud.. But since they are located in another building sound is not an issue.
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BTC: 1MyJmxS9ER5ZBNvpG3LhoUXGotpzbPowed
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alh
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February 09, 2015, 08:10:13 PM |
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Great info I'll be trying your settings after im all spun up.. The gf is still making power supplies... While the rig setup is impressive, even more striking is that your GF is interested in working on this! That to me is probably the most valuable thing you have going for you.....
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SDRebel
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February 11, 2015, 06:38:11 PM |
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I'm confused, is there a sp20 and a sp20e? Two different models? Edit: I've seen some on ebay for under $500 or so, looked interesting
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Xircom (OP)
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February 11, 2015, 06:55:25 PM |
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I'm confused, is there a sp20 and a sp20e? Two different models? Edit: I've seen some on ebay for under $500 or so, looked interesting
Yes, first gen was sp20 and second gen is sp20e.
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BTC: 1MyJmxS9ER5ZBNvpG3LhoUXGotpzbPowed
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Biffa
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February 11, 2015, 06:56:25 PM |
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While the rig setup is impressive, even more striking is that your GF is interested in working on this! That to me is probably the most valuable thing you have going for you..... Whats more impressive is the angles she is able to work at!
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bronan
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February 11, 2015, 07:23:42 PM Last edit: February 11, 2015, 07:38:13 PM by bronan |
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blade psu's are very capable ones although i see this are very slim models. The IBM BB psu's are much bigger but often lack cooling but can cope with insane loads These are made to be cooled by the airflow in the blade servers, a mate and i tested the max load which is a 2800 watt IBM Blade PSU (2980 W - IBM BladeCenter H (7989, 8852)) could handle We stopped at about 3500 watt load because going higher would be no longer safe, at this extreme load it becomes a huge risk and fire hazard. But the psu did not even fail once. These need some adjustments to get them cooled and you need to get the cables soldered, or try to get some tech wiz to create a breakout box for these monsters Side note when we turned it on the lamps in barn dimmed, so these are not for the faint hearted. DO NOT USE these without making sure everything can handle these loads.
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SDRebel
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February 11, 2015, 08:11:11 PM |
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I'm confused, is there a sp20 and a sp20e? Two different models? Edit: I've seen some on ebay for under $500 or so, looked interesting
Yes, first gen was sp20 and second gen is sp20e. Thanks, i don't see it in their website as such...or is it the same sp20 and you may just get a newer model? http://www.spondoolies-tech.com/collections/products
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DevonMiner
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February 11, 2015, 11:21:50 PM |
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Thanks, i don't see it in their website as such...or is it the same sp20 and you may just get a newer model?
No 'just' about it, SP20E will show in the GUI when you boot-up, they are currently shipping SP20E's, not the earlier models. I have a few and more arriving in a few days.
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Finksy
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February 12, 2015, 12:19:29 AM |
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blade psu's are very capable ones although i see this are very slim models. The IBM BB psu's are much bigger but often lack cooling but can cope with insane loads These are made to be cooled by the airflow in the blade servers, a mate and i tested the max load which is a 2800 watt IBM Blade PSU (2980 W - IBM BladeCenter H (7989, 8852)) could handle We stopped at about 3500 watt load because going higher would be no longer safe, at this extreme load it becomes a huge risk and fire hazard. But the psu did not even fail once. These need some adjustments to get them cooled and you need to get the cables soldered, or try to get some tech wiz to create a breakout box for these monsters Side note when we turned it on the lamps in barn dimmed, so these are not for the faint hearted. DO NOT USE these without making sure everything can handle these loads.
The 2880W Bladecenter PSU's are quite amazing. I currently have 3x SP20's hooked up to one at approx 1500 GH/s each, and it is drawing 13.41 amps at the wall w/ an ammeter. Over 3,000 watts and holding steady for well over a week now. But, if anyone thinks the SP20 fans are loud @ 100%, wait till you hear the fans on these bad boys . I will be distributing J4bberwock's IBM 2880W breakout boards for North America. Should receive my initial order in about 2-3 weeks now, will create a thread at that time. You won't find 80+ Platinum rated power for cheaper, that is for sure. And it beats the heck out of trying to rig up your own fans on the 2000W server PSU's.
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gallery2000
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February 12, 2015, 03:59:58 AM |
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Great info I'll be trying your settings after im all spun up.. The gf is still making power supplies... Looks very good indeed. Just noticed that you decided to use blade psu. Remember to ask insurance company if they will cover this mod. What psu did you decide to use ? very nice bracelets.
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takagari
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February 12, 2015, 04:20:46 AM |
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blade psu's are very capable ones although i see this are very slim models. The IBM BB psu's are much bigger but often lack cooling but can cope with insane loads These are made to be cooled by the airflow in the blade servers, a mate and i tested the max load which is a 2800 watt IBM Blade PSU (2980 W - IBM BladeCenter H (7989, 8852)) could handle We stopped at about 3500 watt load because going higher would be no longer safe, at this extreme load it becomes a huge risk and fire hazard. But the psu did not even fail once. These need some adjustments to get them cooled and you need to get the cables soldered, or try to get some tech wiz to create a breakout box for these monsters Side note when we turned it on the lamps in barn dimmed, so these are not for the faint hearted. DO NOT USE these without making sure everything can handle these loads.
The 2880W Bladecenter PSU's are quite amazing. I currently have 3x SP20's hooked up to one at approx 1500 GH/s each, and it is drawing 13.41 amps at the wall w/ an ammeter. Over 3,000 watts and holding steady for well over a week now. But, if anyone thinks the SP20 fans are loud @ 100%, wait till you hear the fans on these bad boys . I will be distributing J4bberwock's IBM 2880W breakout boards for North America. Should receive my initial order in about 2-3 weeks now, will create a thread at that time. You won't find 80+ Platinum rated power for cheaper, that is for sure. And it beats the heck out of trying to rig up your own fans on the 2000W server PSU's. The breakout boards do seem very interesting, but are expensive for what they do Thought about having pcb's made, doing my own. Still considering it
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Finksy
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February 12, 2015, 05:54:57 AM |
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The breakout boards do seem very interesting, but are expensive for what they do Thought about having pcb's made, doing my own. Still considering it I don't want to clutter the OP's excellent thread (or over-shadow all the compliments rolling in about chicago's girlfriend ) so I respectfully won't post after this. Expensive compared to what? For large deployment, the difference in price versus off-the-shelf ATX PSU's (even without factoring in the higher efficiency rating) is huge. You can buy a 2880W PSU, breakout board and cables for less than 1 EVGA 1300W G2, and have higher efficiency rating (as well as over 2x the power). If you mean they are expensive versus wiring it up yourself, I personally think they are good value. I have modified MANY smaller 1 kW DPS 800GBA PSU's in the past, and it was at least an hour of work per PSU (with only 4x PCI cables per PSU, not 20+). With 3,000 Watts of AC power, if you go without a PCB you have some serious soldering to do. If you do get your own PCB made up (and essentially your own breakout board), you have to source out the proprietary connectors, which at this point J4bberwock has been waiting on for around 2 months at the factory. They are not cheap, but they do represent a lot of value IMO. /shameless plugs
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takagari
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February 12, 2015, 06:27:17 AM |
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The breakout boards do seem very interesting, but are expensive for what they do Thought about having pcb's made, doing my own. Still considering it I don't want to clutter the OP's excellent thread (or over-shadow all the compliments rolling in about chicago's girlfriend ) so I respectfully won't post after this. Expensive compared to what? For large deployment, the difference in price versus off-the-shelf ATX PSU's (even without factoring in the higher efficiency rating) is huge. You can buy a 2880W PSU, breakout board and cables for less than 1 EVGA 1300W G2, and have higher efficiency rating (as well as over 2x the power). If you mean they are expensive versus wiring it up yourself, I personally think they are good value. I have modified MANY smaller 1 kW DPS 800GBA PSU's in the past, and it was at least an hour of work per PSU (with only 4x PCI cables per PSU, not 20+). With 3,000 Watts of AC power, if you go without a PCB you have some serious soldering to do. If you do get your own PCB made up (and essentially your own breakout board), you have to source out the proprietary connectors, which at this point J4bberwock has been waiting on for around 2 months at the factory. They are not cheap, but they do represent a lot of value IMO. /shameless plugs Well, for the psu I'm buying, I found the connectors in Canada for $10 a piece. Was quick. But I can se the plus and minus to the boards. I may still jump and buy 10, but it's a large chunk on my ROI list.
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bronan
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February 12, 2015, 11:40:26 AM |
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The breakout boards do seem very interesting, but are expensive for what they do Thought about having pcb's made, doing my own. Still considering it I don't want to clutter the OP's excellent thread (or over-shadow all the compliments rolling in about chicago's girlfriend ) so I respectfully won't post after this. Expensive compared to what? For large deployment, the difference in price versus off-the-shelf ATX PSU's (even without factoring in the higher efficiency rating) is huge. You can buy a 2880W PSU, breakout board and cables for less than 1 EVGA 1300W G2, and have higher efficiency rating (as well as over 2x the power). If you mean they are expensive versus wiring it up yourself, I personally think they are good value. I have modified MANY smaller 1 kW DPS 800GBA PSU's in the past, and it was at least an hour of work per PSU (with only 4x PCI cables per PSU, not 20+). With 3,000 Watts of AC power, if you go without a PCB you have some serious soldering to do. If you do get your own PCB made up (and essentially your own breakout board), you have to source out the proprietary connectors, which at this point J4bberwock has been waiting on for around 2 months at the factory. They are not cheap, but they do represent a lot of value IMO. /shameless plugs Well, for the psu I'm buying, I found the connectors in Canada for $10 a piece. Was quick. But I can se the plus and minus to the boards. I may still jump and buy 10, but it's a large chunk on my ROI list. Agreed on that yes they cost often more than the psu cost at least the ones being sold each time being replaced. Our firm replaces the psu's almost every 2 years just to make sure, the ones coming out of these server will work many years flawless, hell i had one for almost 11 years and it still works. Ofcourse with the much higher efficiency its ofcourse wise to replace them from silver or lower into the better ones. But i found out some of them rated being 80+ silver (ibm and antec) still beat my brand new platinum psu's Back on the breakout boxes they do work pretty nice especially the heavy psu models they can feed so many smaller miners its almost insane My mate uses 2000BB psu's to feed his scrypt-n/x (11,13,15) gpu rigs if you see all those cables coming from just one psu you think omg what!!! all those on 1 psu. And it all looks nice and tidy with the breakout box
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bronan
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February 12, 2015, 11:47:16 AM |
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That's interested. How loud are they running at these underclocked speeds?
On topic if you underclock them and have a cool ambient temperature, you can set the sp20 at fan speed 20 ( normal set at 80 ) The difference between 20 and 80 is huge, i think the noise is now around 72 db With the fan at 80 it sounds like a small airplane At startup it goes full speed maybe someone with a good camera can record that Its ofcourse still audible but absolute a lot less, it seems someone cut the metal in front of the fan away and that made a huge difference in noise as well
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chicagoleo
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March 04, 2015, 05:06:06 AM |
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Hello all, I used the HP DPS1200FB Soidered on a 1k risistor And 4 x 16awg PCI connectors Total price per ps 31 bucks Oh, Plus added rubber feet from Home Depot so that's another 20 cents ea
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chicagoleo
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March 04, 2015, 05:25:38 AM Last edit: March 04, 2015, 05:38:01 AM by chicagoleo |
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70+TH One thing I noticed, much better to throw the hot air 10 feet away than into a wall 2 feet away. (Also notice the box fans only to blow air over the ps, without airflow they get hot) And derate your conduit! I used 10awg wire for the 20amp circuits instead of 12awg, which derates to code. 42 x 20amp, 120v, dedicated 3 phase208 sub, networked neutral. http://i60.tinypic.com/i1bl2f.jpgHere is a good pic of the ps mod up close http://i59.tinypic.com/2zh4daa.jpghttp://i59.tinypic.com/effgp2.jpgAnd make sure you have a good helper http://i58.tinypic.com/2ai07k.jpgThe hot side http://i61.tinypic.com/2s9bo8p.jpg
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Rabinovitch
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Activity: 2030
Merit: 1076
A humble Siberian miner
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March 04, 2015, 05:36:34 AM Last edit: March 04, 2015, 07:44:11 AM by Rabinovitch |
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Impressive... So the main point in crypto-mining is to choose right girlfriend?..
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mavericklm
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March 04, 2015, 08:13:44 AM |
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something is wrong with me, i look more impres because of the back-up generator in the back ))))) nice rack of miners!!!
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Rabinovitch
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Activity: 2030
Merit: 1076
A humble Siberian miner
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March 04, 2015, 09:02:29 AM |
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For me it looks more real to meet such a wonderful woman than to obtain such quantity of SP20(E)s... So I don't need such diesel generator...
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